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CVE-2020-11991

When using the StreamGenerator, the code parse a user-provided XML. A specially crafted XML, including external system entities, could be used to...

Basic Information

CVE State
PUBLISHED
Reserved Date
April 21, 2020
Published Date
September 11, 2020
Last Updated
August 04, 2024
Vendor
Apache Software Foundation
Product
Apache Cocoon
Description
When using the StreamGenerator, the code parse a user-provided XML. A specially crafted XML, including external system entities, could be used to access any file on the server system.
Tags
apache nuclei_scanner

CVSS Scores

CVSS v3.1

7.5 - HIGH

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v2.0

5.0

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

EPSS Score

Score
92.40% (Percentile: 99.72%) as of 2025-06-14

Exploit Status

Exploited in the Wild
Yes (2025-05-31 00:00:00 UTC) Source

References

https://lists.apache.org/thread.html/r77add973ea521185e1a90aca00ba9dae7caa8d8b944d92421702bb54%40%3Cusers.cocoon.apache.org%3E

Known Exploited Vulnerability Information

Source Added Date
The Shadowserver (via CIRCL) 2025-06-01 12:00:52 UTC

Scanner Integrations

Scanner URL Date Detected
Nuclei https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2020/CVE-2020-11991.yaml 2025-04-26 00:00:00 UTC

Timeline

  • CVE ID Reserved

  • CVE Published to Public

  • Detected by Nuclei

  • Added to KEVIntel